Annular welding turnover mechanism

Abstract

The utility model discloses an annular welding turnover mechanism, which relates to the technical field of welding and comprises a connecting seat, a motor and a limiting component which are symmetrically arranged on a base, the motor is fixedly arranged on one side of the connecting seat, a rotating seat fixed with the output end of the motor is rotatably arranged on the other side of the connecting seat, and a clamping frame is arranged on the outer side of the rotating seat. A clamping frame is arranged on the base, a screw rod with positive and negative threads is rotatably arranged in the clamping frame, clamping blocks are symmetrically arranged on the screw rod in a threaded mode, a rotating handle is fixedly arranged at the top end of the screw rod, and a limiting assembly used for supporting and limiting the annular workpiece in the overturning process is arranged on the outer side of the clamping frame. When the workpiece needs to be turned over, only the clamping frame and the workpiece need to be driven to rotate by 180 degrees integrally through electric operation, re-clamping after turning over is not needed, and meanwhile the situation that the workpiece slips in the turning process can be prevented through the arranged limiting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a ring welding turnover mechanism. Background Art

[0002] In the work of welding annular plates, annular workpieces are relatively common. During the processing of annular workpieces, welding operations will be more or less involved on points on the annular workpiece. In order to ensure that the annular plate will not be deformed during the welding process, welding tooling is usually used for welding.

[0003] The annular plate welding tooling with publication number CN214444198U includes a tooling main board, a first positioning block and a second positioning block. The upper surface of the tooling main board includes an inner ring, a middle ring and an outer ring. The distances between the inner ring, the middle ring and the outer ring and the center of the tooling main board increase successively. There is a first positioning hole in the middle ring and a second positioning hole in the outer ring. The first positioning block is installed in the first positioning hole and the second positioning block is installed in the second positioning hole.

[0004] When the above device is in use, it can only weld one side of the annular workpiece. When the other side needs to be welded, the workpiece needs to be turned over and re-clamped, which is time-consuming and labor-intensive. Therefore, we propose a ring welding flipping mechanism. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides an annular welding flipping mechanism, which clamps the annular workpiece in a clamping frame through a clamping block. When the workpiece needs to be flipped over, the clamping frame and the workpiece can be rotated 180° as a whole by electric operation, without the need to re-clamp after flipping. At the same time, a limit assembly is provided to prevent the workpiece from slipping during the flipping process.

[0006] In order to solve the above technical problems, the present invention solves the problem of needing to re-clamp and fix the workpiece after turning it over during welding of an annular workpiece through the following technical solutions.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A circular welding flipping mechanism includes a connecting seat, a motor and a limit assembly symmetrically arranged on a base. The motor is fixed on one side of the connecting seat, and a rotating seat fixed to the output end of the motor is rotatably provided on the other side of the connecting seat. A clamping frame is provided on the outside of the rotating seat, and a screw with positive and negative threads is rotatably provided in the clamping frame. The screw is symmetrically threaded with a clamping block, and a turning handle is fixed on the top of the screw. The limit assembly for supporting and limiting the annular workpiece during flipping is provided on the outside of the clamping frame.

[0009] Preferably, a hydraulic rod is fixedly provided at the bottom of the connecting seat, and the hydraulic rod is fixed on the base, which can adjust the height of the workpiece when clamping, facilitating subsequent turning operations.

[0010] Preferably, a first electric push rod is fixed on the side of the rotating seat away from the motor, and the output end of the first electric push rod is fixed to the outside of the clamping frame. By pushing the clamping frame with the first electric push rod, the clamping block can clamp and fix annular workpieces of different sizes.

[0011] Preferably, the limiting assembly includes a mounting frame, which is fixed to a side of the clamping frame close to the first electric push rod, a symmetrically distributed fixing rod is fixed in the mounting frame, a connecting frame is symmetrically rotated on the outside of the fixing rod, an extrusion rod and a fixing rod are fixed between two connecting frames located on the same fixing rod, and a second electric push rod is provided between two symmetrically distributed fixing rods located on the outside of the same clamping frame.

[0012] Preferably, the outer diameter of the extruded rod is equal to the width of the connecting frame.

[0013] Preferably, both ends of the second electric push rod are rotatably connected to the fixed rod through a fixedly arranged fixed cylinder.

[0014] Preferably, a blocking rod is fixedly provided on a side of the clamping frame away from the first electric push rod, and the blocking rod passes through the clamping block and is slidably connected to the clamping block.

[0015] Preferably, there are two symmetrically distributed second electric push rods located outside the same clamping frame and arranged between two symmetrically distributed fixing rods.

[0016] Preferably, a rubber cylinder is fixedly provided on the outer side of the extrusion rod.

[0017] Preferably, the outer end portion of the clamping block is trapezoidal.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model clamps the annular workpiece in the clamping frame through the clamping block. When the workpiece needs to be turned over, the clamping frame and the workpiece are rotated 180 degrees as a whole by electric operation, without the need to re-clamp after turning over. At the same time, the limit assembly provided can prevent the workpiece from slipping during the turning process.

[0020] By setting up extrusion rods that symmetrically clamp the outer ring of the workpiece, the extrusion rods are used to support and fix the outer ring of the workpiece when the workpiece is turned over, thereby ensuring the accuracy of the position of the workpiece after turning over. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the clamping frame of the utility model;

[0024] Figure 3 This is a structural diagram of the clamping frame of the utility model from another perspective;

[0025] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0026] Figure 5 This is a top view of the clamping frame and the limiting assembly structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the connection between the extrusion rod and the rubber cylinder of the utility model.

[0028] Explanation of the figure numbers: 1. Connecting seat; 2. Motor; 3. Rotating seat; 4. Clamping frame; 5. Screw; 6. Clamping block; 7. Turning handle; 8. Limiting assembly; 9. Hydraulic rod; 10. First electric push rod; 11. Mounting frame; 12. Fixing rod; 13. Connecting frame; 14. Extrusion rod; 15. Fixing rod; 16. Second electric push rod; 17. Stop rod; 18. Rubber cylinder. DETAILED DESCRIPTION

[0029] The present invention is described in further detail below with reference to the accompanying drawings.

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or gear element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0032] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] Example:

[0034] See also Figures 1-6 , a circular welding flipping mechanism, including a connecting seat 1, a motor 2 and a limit assembly 8 symmetrically arranged on the base, a hydraulic rod 9 is fixedly arranged at the bottom of the connecting seat 1, and the hydraulic rod 9 is fixedly arranged on the base. The hydraulic rod 9 drives the connecting seat 1 to move up and down to adjust the height of the workpiece when clamping, which is convenient for subsequent flipping operations. The motor 2 is fixed on one side of the connecting seat 1. The motor 2 is a servo motor that can control the rotation angle of the clamping frame 4. The other side of the connecting seat 1 is provided with a rotating seat 3 fixed to the output end of the motor 2. The clamping frame 4 is provided on the outside of the rotating seat 3. The first electric push rod 10 is fixed on the side of the rotating seat 3 away from the motor 2. The output end of the first electric push rod 10 is fixed to the outside of the clamping frame 4. The first electric push rod 10 pushes the workpiece The clamping frame 4 allows the clamping block 6 to clamp and fix annular workpieces of different sizes. A screw 5 with forward and reverse threads is rotated inside the clamping frame 4, and a clamping block 6 is provided with symmetrical threads on the screw 5. The forward and reverse threads can drive the two clamping blocks 6 to move in the same direction or in reverse directions when the screw 5 rotates. A baffle 17 is fixed on the side of the clamping frame 4 away from the first electric push rod 10. The baffle 17 passes through the clamping block 6 and is slidably connected to the clamping block 6. The baffle 17 is used to support the outside of the workpiece to ensure the clamping stability of the clamping block 6 on the workpiece, and at the same time, it can prevent the workpiece from contacting the screw 5 and being scratched by the screw 5. A turning handle 7 is fixed on the top of the screw 5, and a limit assembly 8 for supporting and limiting the annular workpiece during flipping is arranged on the outside of the clamping frame 4.

[0035] Some embodiments of the present application are described in detail below with reference to the accompanying drawings:

[0036] See also Figures 1-6By clamping the annular workpiece in the clamping frame 4 through the clamping block 6, when the workpiece needs to be turned over, it is only necessary to drive the clamping frame 4 and the workpiece to rotate 180° as a whole through electric operation, and there is no need to re-clamp after turning over. At the same time, the limit assembly 8 provided can prevent the workpiece from slipping during the turning process.

[0037] Among them, the limiting assembly 8 includes a mounting frame 11, which is fixed on one side of the clamping frame 4 close to the first electric push rod 10. A symmetrically distributed fixing rod 12 is fixed in the mounting frame 11, and a connecting frame 13 is symmetrically rotated on the outside of the fixing rod 12. An extrusion rod 14 and a fixing rod 15 are fixed between the two connecting frames 13 located on the same fixing rod 12. The outer diameter of the extrusion rod 14 is equal to the width of the connecting frame 13. When clamping a workpiece with a thickness greater than the length of the extrusion rod 14, it can ensure that the outer side of the extrusion rod 14 completely rests against the workpiece. A second electric push rod 16 is provided between the two symmetrically distributed fixing rods 15 located on the outside of the same clamping frame 4. Both ends of the second electric push rod 16 are rotatably connected to the fixing rod 15 through a fixed fixing cylinder. The operation of the second electric push rod 16 drives the two extrusion rods 14 to support and limit the outer side of the workpiece.

[0038] It is worth noting that Figure 4 As shown, in order to ensure the uniformity and strength of the force applied by the extrusion rod 14 on the workpiece, the second electric push rods 16 located between the two symmetrically distributed fixed rods 15 on the outside of the same clamping frame 4 are arranged to be symmetrically distributed. The two second electric push rods 16 operate simultaneously, one of which applies force toward the upper side of the fixed rod 15 and the extrusion rod 14, and the other applies force toward the lower side of the fixed rod 15 and the extrusion rod 14, to ensure that the force applied by the extrusion rod 14 is stable when pressing the workpiece.

[0039] In order to flip the workpiece during the welding process, the implementation method of the present application is described as follows:

[0040] First, use the hydraulic rod 9 to adjust the height of the entire device;

[0041] Then, the second electric push rod 16 drives the two fixing rods 15 to move outward, thereby transmitting force to the extrusion rod 14 through the connecting frame 13, driving the extrusion rod 14 to move toward the workpiece until the extrusion rod 14 abuts against the outside of the workpiece, supporting and fixing the outside of the workpiece;

[0042] Afterwards, the motor 2 is driven to rotate the clamping frame 4 and the workpiece in the clamping frame 4 by 18 degrees as a whole, thereby turning the workpiece over.

[0043] When workpieces of different sizes need to be clamped, the position of the clamping frame 4 only needs to be adjusted by the first electric push rod 10 until the workpiece of the corresponding size is adapted.

[0044] In the implementation of this technical solution, if Figure 2 As shown, in order to improve the accuracy of the clamping block 6 when clamping the workpiece, the outer end of the clamping block 6 is set to be trapezoidal. The clamping block 6 with a pointed end can ensure the accuracy of the clamping block 6 in clamping the workpiece.

[0045] In the implementation of this technical solution, if Figure 3 、 Figure 4 and Figure 6 As shown, in order to prevent the extrusion rod 14 from over-extruding the workpiece, a rubber tube 18 is fixedly set on the outside of the extrusion rod 14. The rubber tube 18 is in contact with the workpiece to avoid direct contact between the extrusion rod 14 and the workpiece, which can prevent stress concentration and thus prevent the extrusion rod 14 from applying excessive force to damage the workpiece.

[0046] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles.

Claims

1. A ring welding flip mechanism, characterized in that: include: A connecting seat (1) symmetrically arranged on the base; A motor (2), wherein the motor (2) is fixedly arranged on one side of the connecting seat (1), and a rotating seat (3) fixed to the output end of the motor (2) is rotatably provided on the other side of the connecting seat (1), a clamping frame (4) is provided on the outside of the rotating seat (3), a screw (5) with forward and reverse threads is rotatably provided inside the clamping frame (4), a clamping block (6) is provided on the symmetrical threads on the screw (5), and a turning handle (7) is fixed on the top of the screw (5); A limiting assembly (8) for supporting and limiting the annular workpiece during flipping is arranged on the outside of the clamping frame (4).

2. The annular welding flip mechanism according to claim 1, characterized in that: A hydraulic rod (9) is fixedly provided at the bottom of the connecting seat (1), and the hydraulic rod (9) is fixedly provided on the base.

3. The annular welding turnover mechanism according to claim 1, characterized in that: A first electric push rod (10) is fixedly provided on a side of the rotating seat (3) away from the motor (2), and an output end of the first electric push rod (10) is fixed to the outer side of the clamping frame (4).

4. The annular welding turnover mechanism according to claim 3, characterized in that: The limiting assembly (8) includes a mounting frame (11), the mounting frame (11) is fixedly arranged on a side of the clamping frame (4) close to the first electric push rod (10), a symmetrically distributed fixing rod (12) is fixed in the mounting frame (11), a connecting frame (13) is symmetrically rotated outside the fixing rod (12), an extrusion rod (14) and a fixing rod (15) are fixed between two connecting frames (13) located on the same fixing rod (12), and a second electric push rod (16) is provided between the two symmetrically distributed fixing rods (15) located outside the same clamping frame (4).

5. The annular welding turnover mechanism according to claim 4, characterized in that: The outer diameter of the extruded rod (14) is equal to the width of the connecting frame (13).

6. The annular welding turnover mechanism according to claim 4, characterized in that: Both ends of the second electric push rod (16) are rotatably connected to the fixed rod (15) through fixedly arranged fixing cylinders.

7. The annular welding turnover mechanism according to claim 3, characterized in that: A blocking rod (17) is fixedly provided on a side of the clamping frame (4) away from the first electric push rod (10), and the blocking rod (17) passes through the clamping block (6) and is slidably connected to the clamping block (6).

8. The annular welding turnover mechanism according to claim 4, characterized in that: There are two symmetrically distributed second electric push rods (16) located outside the same clamping frame (4) and arranged between the two symmetrically distributed fixing rods (15).

9. The annular welding turnover mechanism according to claim 4, characterized in that: A rubber soft cylinder (18) is fixedly provided on the outer side of the extrusion rod (14).

10. The annular welding turnover mechanism according to claim 1, characterized in that: The outer end portion of the clamping block (6) is trapezoidal.

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